Bryophyllum gastonis-bonnieri (Hamet & Perrier) Lauzac-Marchal, Crassulaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  Accept (based on second screen), score: 2 (Go to the risk assessment).

Other Latin names:  Kalanchoë gastonis-bonnieri Hamet & Perr.

Common name(s): [more details]

English: donkey ears, palm beachbells

Spanish: dulcamara

Habit:  shrub

Description:  "Shrub 50-60 cm high, stem robust, 12 mm diameter below, 7 mm diameter toward the apex, internodes 2-11.5 cm long; leaves decussate, broadly amplexicaul and passing into the blade and there entire, this part 3.5-6 cm long, 17 mm wide, the leaf-blade ovate-lanceolate, 13.5-16.5 cm long, 47-55 mm wide, rounded above, leaf margins coarsely roundish-crenate, surface whitish to mealy pruinose; inflorescence terminal, producing a corymb 28 cm high, 15 cm broad, pedicels glabrous, 10 mm long, calyx glabrous, campanulate, 13-15 mm long, lobes triangular, corolla-tube longer than the calyx, pale pink" (Jacobsen, 1960; p. 648).

Habitat/ecology:  Light shade to full sun.  Hardiness: above 4.5° C (40° F) (Dave's garden).

Propagation:  Seed. Plant is viviparous (Dave's garden).

Native range:  Madagascar(?) (Jacobsen, 1960; p. 648).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Ecuador (Galápagos Islands) Isabela Group	Isabela Island	introduced cultivated	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Isabela Group	Volcán Sierra Negra, Isabela Island	introduced cultivated	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) San Cristóbal Group	San Cristóbal Island	introduced cultivated	Charles Darwin Foundation (2008)
Ecuador (Galápagos Islands) Santa Cruz Group	Santa Cruz Island	introduced cultivated	Charles Darwin Foundation (2008)
Marshall Islands Ratak Chain	Majuro (Mãjro) Atoll	introduced cultivated	Vander Velde, Nancy (2003) (p. 86)

Comments:  Other Bryophyllums are invasive.

Additional information:
Additional online information about Bryophyllum gastonis-bonnieri is available from the Hawaiian Ecosystems at Risk project (HEAR).

Information about Bryophyllum gastonis-bonnieri as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

Taxonomic information about Bryophyllum gastonis-bonnieri may be available from the Germplasm Resources Information Network (GRIN).

References:

Charles Darwin Foundation. 2008. Database inventory of introduced plant species in the rural and urban zones of Galapagos. Charles Darwin Foundation, Galapagos, Ecuador.

Charles Darwin Research Station. 2005. CDRS Herbarium records.

Jacobsen, Hermann. 1960. A handbook of succulent plants: descriptions, synonyms and cultural details for succulents other than Cactaceae. Blandford Press, London.

U.S. Dept. Agr., Agr. Res. Serv. 2010. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.

Vander Velde, Nancy. 2003. The vascular plants of Majuro Atoll, Republic of the Marshall Islands. Smithsonian Institution, Atoll Research Bulletin No. 503:1-141.